Adjusting device and guide roller mechanism

Abstract

The utility model relates to an adjusting device and a guide roller mechanism, and relates to the technical field of film production, the adjusting device and the guide roller mechanism comprise a fixed seat, a lead screw assembly and a connecting assembly, the lead screw assembly is movably installed on the fixed seat and is connected with the connecting assembly, the lead screw assembly is used for driving the connecting assembly to move linearly, and the connecting assembly is connected with the lead screw assembly. The connecting assembly is used for being connected with an object to be adjusted. The device further comprises an anti-rotation fixing piece which is used for locking the lead screw assembly after adjustment is completed. According to the adjusting device, simple and accurate adjustment is achieved through lead screw driving, the steps in traditional manual adjustment are simplified, the operation difficulty is reduced, linear displacement control can be achieved in the adjusting process through lead screw assembly driving, the adjusting precision of the guide roller parallelism is improved, errors in manual adjustment are avoided, and the adjusting efficiency is improved. The anti-rotation fixing piece is matched with the lead screw assembly to ensure the stability of the guide roller, potential safety hazards are reduced, the safety of operators is guaranteed, and therefore the stability and safety in the adjusting process are improved.

Description

Technical Field

[0001] This application relates to the field of thin film production technology, and in particular to an adjustment device and guide roller mechanism. Background Technology

[0002] In the production of films such as TPU (thermoplastic polyurethane), the parallelism of guide rollers is crucial to ensuring product quality. Especially in multi-guide roller production equipment, the parallelism between guide rollers directly affects the surface quality, thickness uniformity, and final mechanical properties of the film or sheet.

[0003] In existing TPU film production equipment, the parallelism adjustment of guide rollers is typically performed inside the equipment. This operation requires manual adjustment during production and often involves frequent steps of loosening, measuring, adjusting, and re-tightening locking nuts. Since these steps usually rely on experience, and the weight and gravity of the guide rollers must be considered during the adjustment process, the parallelism adjustment process becomes extremely cumbersome and carries a high operational risk. For example, when adjusting the vertical direction, loosening certain bolts may cause the guide rollers to sag or become unstable due to gravity, resulting in inaccurate parallelism adjustment. Furthermore, when both the horizontal direction and parallelism need to be adjusted simultaneously, the limitations of traditional adjustment methods make the process even more complex and inconvenient.

[0004] The adjustment difficulties and safety hazards inherent in these existing technologies not only increase the workload of operators but also prevent parallelism adjustments from being completed in real time and accurately, thus affecting the production quality of the film. Therefore, there is an urgent need for a more efficient, accurate, safe, and convenient guide roller parallelism adjustment solution to ensure quality stability and production efficiency in the production process of TPU and other films. Utility Model Content

[0005] To address the problems of difficulty in adjusting the parallelism of existing guide rollers and the associated safety hazards, this application provides an adjustment device and a guide roller mechanism.

[0006] The adjustment device and guide roller mechanism provided in this application adopt the following technical solution:

[0007] An adjustment device includes a fixed base, a lead screw assembly, and a connecting assembly. The lead screw assembly is movably mounted on the fixed base and connected to the connecting assembly. The lead screw assembly is used to drive the connecting assembly to move linearly. The connecting assembly is used to connect an object to be adjusted. The device also includes an anti-rotation fixing member, which is used to lock the lead screw assembly after adjustment is completed.

[0008] By adopting the above technical solution, the adjustment device can achieve relatively simple adjustment through lead screw drive, simplifying the complex steps in traditional manual adjustment, such as frequent loosening of bolts, measurement, and re-tightening, greatly reducing the difficulty and time of operation; using lead screw assembly drive, the adjustment process can achieve linear displacement control, thereby improving the adjustment accuracy of guide roller parallelism and avoiding errors caused by experience factors in traditional manual adjustment; the cooperation between the anti-rotation fixing component and the lead screw assembly means that operators do not need to worry about the instability of the guide roller when adjusting the parallelism of the guide roller, reducing safety hazards in the operation process and thus ensuring the safety of operators.

[0009] In one specific implementation, a guide component is further included, which is mounted on the fixed base and connected to the connecting component, the guide component being used to guide the connecting component to enable linear movement of the connecting component.

[0010] By adopting the above technical solution, the guiding component guides the movement of the connecting component along a predetermined trajectory. The guiding component provides a more stable track for the connecting component, ensuring the stability and accuracy of the linear movement of the connecting component.

[0011] In one specific implementation, the guide assembly includes a slider and a guide rail fixed on the fixed base, the slider engaging with the guide rail and moving along the guide rail, and the slider being connected to the connecting assembly.

[0012] By adopting the above technical solution, due to the engaging connection between the slider and the guide rail, the connecting component will move along the trajectory of the guide rail during the adjustment process. The displacement of the connecting component is not only affected by the rotation drive of the lead screw, but also guided by the guide rail, ensuring the smoothness and accuracy of the movement.

[0013] In one specific implementation, the connecting assembly includes a connector and a bearing component. The connector is connected to the slider, and the bearing component is mounted on the connector. The bearing component is locked and fixed to the object to be adjusted by a nut and a locking washer.

[0014] By adopting the above technical solution, the installation of the bearing components on the connecting parts not only reduces friction but also enhances the load-bearing capacity of the system, making the force more uniform during the adjustment process. Through the cooperation of the nut and the locking washer, the bearing components can firmly lock and fix the object to be adjusted, preventing loosening or displacement during movement and ensuring the accuracy and consistency of the adjustment.

[0015] In one specific implementation, the lead screw assembly includes a drive member, a lead screw, and a lead screw nut. The lead screw nut is fixed to the connector, and the lead screw and the lead screw nut are threaded together. An anti-rotation fixing member is disposed between the drive member and the lead screw. One end of the lead screw passes through the anti-rotation fixing member and is connected to the drive member. The anti-rotation fixing member is used to limit the rotation of the lead screw.

[0016] By adopting the above technical solution, the threaded connection between the lead screw and the lead screw nut achieves accurate linear motion. With the rotation of the lead screw, the lead screw nut can move along the lead screw axis to achieve accurate adjustment. The anti-rotation fixing part is loosened during the adjustment process, allowing the lead screw to rotate freely, thereby accurately adjusting the position of the lead screw nut. After the adjustment is completed, the anti-rotation fixing part locks the lead screw to ensure the accuracy of the adjustment result.

[0017] In one specific implementation, the driving component is a dial indicator handwheel, which has a scale display for quantifying the adjustment amount.

[0018] By adopting the above technical solution, the scale display of the dial wheel allows the adjustment amount to be quantified. Users can intuitively see the magnitude of each adjustment, making adjustments more convenient and faster, thereby ensuring the accuracy of the adjustment process and reducing uncertainty and human error in operation.

[0019] In one specific implementation, the fixed base includes a slider base and a support, the slider base and the support are arranged perpendicularly, the guide rail is fixed on the slider base, and the lead screw is installed on the support through a support fixing member.

[0020] By adopting the above technical solution, utilizing the vertical configuration of the slider seat and the support, combined with a stable lead screw installation method, the accuracy and stability of the movement of the guide rail and the lead screw are ensured; the guiding effect of the guide rail allows the slider to run smoothly, while the lead screw is installed through the support fixing component to maintain the stability of the lead screw, thereby achieving accurate and efficient linear adjustment.

[0021] In one specific implementation, the anti-rotation fixing component includes a fixing sleeve, an anti-rotation key, and a handle. The fixing sleeve is sleeved on the lead screw and presses against the support fixing component with an interference fit. The anti-rotation key is located inside the fixing sleeve and forms a circumferential limit with the lead screw. The handle is linked to the anti-rotation key and is used to control the locking or unlocking state of the anti-rotation key.

[0022] By adopting the above technical solution, utilizing the interference fit of the fixed sleeve and the circumferential limiting mechanism of the anti-rotation key, the rotation of the lead screw can be accurately controlled, avoiding unnecessary errors or positional deviations. Through the linkage between the handle and the anti-rotation key, the user can easily control the locking and unlocking of the anti-rotation key. The circumferential limiting effect of the anti-rotation key and the lead screw ensures that the lead screw will not rotate due to external forces during use, increasing the stability of the lead screw system.

[0023] A guide roller mechanism includes a guide roller assembly and an adjustment device as described above. The guide roller assembly includes two guide rollers, and the adjustment device is configured in two sets and corresponding to the guide rollers. The adjustment device is used to adjust the parallelism of the two guide rollers in the vertical and horizontal directions, respectively.

[0024] By adopting the above technical solution, the guide roller mechanism using the above adjustment device can adjust the parallelism of the guide roller in the vertical and horizontal directions through two sets of independent adjustment devices, thereby realizing fine adjustment of the guide roller position in the up and down and left and right directions, ensuring that the guide roller always maintains the optimal relative position, thereby avoiding material deviation or jamming, improving the stability and production efficiency of the system, and extending the service life of the equipment.

[0025] In one specific implementation, the axes of the two sets of lead screw assemblies are perpendicular to each other.

[0026] By adopting the above technical solution, one lead screw assembly adjusts the parallelism in the vertical direction, while the other lead screw assembly adjusts the parallelism in the horizontal direction, thereby improving the accuracy of parallelism adjustment. The guide roller can be fine-tuned as needed to ensure that the guide roller always maintains the best working condition during operation.

[0027] In summary, the beneficial technical effects of this application are as follows: The guide roller mechanism achieves parallelism adjustment in the vertical and horizontal directions of the guide roller through two sets of independent adjustment devices, ensuring that the guide roller always maintains the optimal relative position; each set of devices is driven by a lead screw, which can accurately control linear displacement and avoid errors in traditional manual adjustment. Combined with an anti-rotation control mechanism, the lead screw effectively prevents unnecessary rotational deviation during adjustment through anti-rotation fixing parts, thereby ensuring the stability and adjustment accuracy of the system; and combined with a visual adjustment function, operators can observe the adjustment status of the guide roller in real time and intuitively monitor the adjustment process, further improving the accuracy and convenience of operation; the overall design ensures high precision, stability, and safety in the adjustment process, keeping the guide roller always in the best working condition. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the adjustment device according to an embodiment of this application.

[0029] Figure 2 It is an exploded view used to display the regulating device.

[0030] Figure 3 This is a schematic diagram used to demonstrate the application of adjustment components on a guide rail mechanism.

[0031] Explanation of reference numerals in the attached drawings: 1. Handwheel with dial indicator; 2. Anti-rotation fixing component; 3. Support fixing component; 4. Lead screw; 5. Lead screw nut; 6. Slider seat; 7. Guide assembly; 8. Support column; 9. Support; 10. Connecting component; 11. Bearing; 12. Bearing cover; 13. Fixed seat; 14. Lead screw assembly; 15. Connecting assembly; 16. Slider; 17. Guide rail; 18. Fixed sleeve; 19. Handle; 20. Guide roller assembly; 21. Guide roller; 22. Adjustment device. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] Reference Figure 1-3 This application discloses an adjustment device that can be applied to position adjustment in various types of equipment, and is particularly suitable for parallelism adjustment of guide roller mechanism. In this embodiment, the guide roller mechanism includes a guide roller assembly 20, which includes two guide rollers 21. The adjustment device 22 is set in two groups and is respectively set to correspond to the two guide rollers 21. The adjustment device 22 is used to adjust the parallelism of the two guide rollers 21 in the vertical direction and the horizontal direction.

[0034] In this embodiment, the adjusting device 22 includes a fixed base 13, a lead screw assembly 14, a connecting assembly 15, and an anti-rotation fixing member 2. The lead screw assembly 14 is movably mounted on the fixed base 13, and the connecting assembly 15 is used to connect the object to be adjusted. In this embodiment, the connecting assembly 15 is used to connect with the guide roller 21. The lead screw assembly 14 is connected to the connecting assembly 15. In this embodiment, the lead screw assembly 14 drives the connecting assembly 15 to perform linear motion, thereby driving the corresponding guide roller 21 to perform linear motion, and realizing the position adjustment of the guide roller 21.

[0035] In this embodiment, the two sets of adjustment devices 22 have the same structure, only different arrangement. One set of adjustment devices 22 is placed vertically, and the other set of adjustment devices 22 is placed horizontally, arranged vertically according to the axis of the lead screw assembly 14 in the two sets of adjustment devices 22. One lead screw assembly 14 adjusts the vertical parallelism of one of the guide rollers 21, and the other lead screw assembly 14 adjusts the horizontal parallelism of the other guide roller 21. This independent adjustment in the vertical and horizontal directions helps to improve the accuracy of parallelism adjustment. The guide rollers 21 can be fine-tuned as needed, thereby ensuring that the guide rollers 21 always maintain the best working state during operation and avoiding skew or non-parallelism.

[0036] The adjustment device 22 also includes an anti-rotation fixing member 2, which is used to lock the lead screw assembly 14. In this embodiment, the anti-rotation fixing member 2 needs to be loosened during the adjustment process. After the anti-rotation fixing member 2 is loosened, the lead screw assembly 14 can move to adjust the position of the guide roller 21. After the adjustment is completed, the anti-rotation fixing member 2 locks the lead screw assembly 14, thereby restricting the movement of the lead screw assembly 14, so that the guide roller 21 can be stably maintained in the adjusted position.

[0037] Before adjustment, loosen the anti-rotation fixing part 2 of one of the adjustment devices 22. During adjustment, adjust the vertical parallelism through one of the adjustment devices 22 by manually or automatically rotating the lead screw assembly 14. The rotation of the lead screw assembly 14 drives the connecting assembly 15 to make linear movement in the vertical direction, thereby causing the guide roller 21 to move accordingly and realize the position adjustment. After the vertical parallelism adjustment is completed, lock the lead screw assembly 14 with the anti-rotation fixing part 2 to ensure that the state after adjustment does not change. Then adjust the horizontal parallelism through the other adjustment device 22. The operation process is the same as the vertical adjustment.

[0038] During this process, the adjustment process can achieve linear displacement control through the lead screw assembly 14, thereby improving the adjustment accuracy of the parallelism of the guide roller 21 and avoiding errors caused by experience factors in traditional manual adjustment. The cooperation between the anti-rotation fixing part 2 and the lead screw assembly 14 means that the operator does not need to worry about the instability of the guide roller 21 when adjusting its parallelism, reducing safety hazards during operation. As a result, the adjustment process is more accurate and safer, and the equipment can complete the adjustment faster and more stably during production.

[0039] The adjusting device 22 also includes a guide assembly 7, which is mounted on the fixed base 13 and connected to the connecting assembly 15. The guide assembly 7 is used to guide the connecting assembly 15 so that the connecting assembly 15 moves linearly. The guide assembly 7 includes a slider 16 and a guide rail 17 fixed on the fixed base 13. The slider 16 is engaged with the guide rail 17 and moves along the guide rail 17. The slider 16 is connected to the connecting assembly 15.

[0040] In this embodiment, the fixed base 13 includes a slider base 6 and a support 9. The slider base 6 and the support 9 are arranged perpendicularly. The guide rail 17 is fixed on the slider base 6 and arranged along the length direction of the slider base 6. The lead screw assembly 14 is installed on the support 9 through the support fixing member 3. In this embodiment, the slider base 6 is provided with a support column 8, which is installed on both sides of the guide rail 17. The support column 8 plays the role of supporting and stabilizing the guide rail 17 in this embodiment, which can increase the stability of the guide rail 17, thereby ensuring that the slider 16 can make accurate linear movements along the guide rail 17.

[0041] When the lead screw assembly 14 drives the connecting assembly 15 to move, due to the engagement connection between the slider 16 and the guide rail 17, the connecting assembly 15 will move along the trajectory of the guide rail 17 during the adjustment process. The displacement of the connecting assembly 15 is not only affected by the rotation drive of the lead screw 4, but also guided by the guide rail 17, ensuring the smoothness and accuracy of the linear motion. With the guiding effect of the guide assembly 7, the movement of the connecting assembly 15 will not deviate from the predetermined trajectory, avoiding problems such as offset and tilt that may occur in traditional adjustment.

[0042] The connecting assembly 15 includes a connector 10 and a bearing component. The connector 10 is connected to the slider 16, and the bearing component is installed on the connector 10. The bearing component is locked and fixed to the guide roller 21 by a nut and a stop washer. In this embodiment, the bearing component includes a bearing 11 and a bearing cover 12. The bearing 11 is first installed on the guide roller 21 and locked with a nut and a stop washer. Then, the bearing 11 is installed into the connector 10, and the bearing cover 12 is used to fix the bearing 11 on the connector 10. The locking cooperation of the nut and the stop washer can ensure that the guide roller 21 is stable and does not shift position during the adjustment process, thereby ensuring the positional stability of the guide roller 21 during the adjustment process.

[0043] The lead screw assembly 14 includes a drive component, a lead screw 4, and a lead screw nut 5. The lead screw nut 5 is connected to the lead screw 4 via a thread. The rotation of the lead screw 4 can drive the lead screw nut 5 to move along the axial direction of the lead screw 4, thereby realizing the linear movement of the connecting component 10 and the guide roller 21. The threaded connection between the lead screw 4 and the lead screw nut 5 realizes the linear movement of the lead screw nut 5, the connecting component 10, and the guide roller 21. Through the rotation of the lead screw 4, the lead screw nut 5 can move along the axial direction of the lead screw 4, thereby realizing the accurate adjustment of the position of the guide roller 21.

[0044] In this embodiment, the anti-rotation fixing member 2 is disposed between the driving member and the lead screw 4. One end of the lead screw 4 passes through the anti-rotation fixing member 2 and is connected to the driving member. The anti-rotation fixing member 2 is used to limit the rotation of the lead screw 4. The anti-rotation fixing member 2 includes a fixing sleeve 18, an anti-rotation key, and a handle 19. The fixing sleeve 18 is sleeved on the lead screw 4 and is pressed against the support fixing member 3 with an interference fit. The anti-rotation key is disposed in the fixing sleeve 18 and forms a circumferential limit with the lead screw 4. The handle 19 is linked to the anti-rotation key. When the handle 19 is turned, the anti-rotation key can be moved radially to achieve locking or unlocking.

[0045] Before adjustment, the operator loosens the anti-rotation fixing piece 2 and releases the anti-rotation key via handle 19. When the anti-rotation key is released, the lead screw 4 can rotate freely. At this time, the drive unit is activated to drive the lead screw 4 to rotate. When the lead screw 4 rotates, the lead screw nut 5 moves along the axial direction of the lead screw 4, driving the connecting piece 10 and the guide roller 21 to perform linear displacement along the guide rail 17. When the target position is reached, the drive unit is turned off. After adjustment, the anti-rotation fixing piece 2 is used to lock the lead screw 4, and the anti-rotation key is locked via handle 19. The anti-rotation key cooperates with the circumferential direction of the lead screw 4 to restrict the free rotation of the lead screw 4, ensuring that the position of the lead screw 4 does not shift, thereby ensuring the accuracy of the adjustment result.

[0046] During this process, the interference fit of the fixed sleeve 18 and the circumferential limiting mechanism of the anti-rotation key can accurately control the rotation of the lead screw 4. Through the linkage between the handle 19 and the anti-rotation key, the user can easily control the locking and unlocking of the anti-rotation key. The circumferential limiting function of the anti-rotation key and the lead screw 4 ensures the stability of the lead screw 4 during use, making operation simple and improving overall flexibility and user experience.

[0047] In this embodiment, the driving component is a dial indicator handwheel 1, which is equipped with a scale display for quantifying the adjustment amount. In this embodiment, the connecting component 10 will undergo a corresponding displacement for each rotation of the lead screw 4 or a certain specific angle. The scale on the dial indicator handwheel 1 can be calibrated according to this ratio. For example, for each rotation of the lead screw 4 at a certain angle, the displacement of the guide roller 21 is 1mm, that is, each angle scale represents a linear displacement of 1mm.

[0048] The scale display on the dial wheel 1 allows for the quantification of adjustment amounts, enabling users to intuitively see the magnitude of each adjustment and making adjustments more convenient and faster. This ensures the accuracy of the adjustment process and reduces uncertainty and human error during operation.

[0049] The implementation principle of this application embodiment is as follows: Before adjustment, first loosen the anti-rotation fixing part 2 of one of the adjustment devices 22, and loosen the anti-rotation key through the handle 19, so that the lead screw 4 can rotate freely; then, use one of the adjustment devices 22 to adjust the parallelism in the vertical direction, drive the lead screw 4 to rotate by rotating the dial indicator handwheel 1, and the lead screw nut 5 moves along the axial direction of the lead screw 4, driving the connecting part 10 and the guide roller 21 to make linear displacement along the guide rail 17. At this time, the displacement of the guide roller 21 can be seen intuitively through the scale display on the dial indicator handwheel 1. After reaching the target position, stop rotating the dial indicator handwheel 1; after the adjustment is completed, use the anti-rotation fixing part 2 to lock the lead screw 4, and drive the anti-rotation key to lock through the handle 19. The anti-rotation key cooperates with the lead screw 4 circumferentially, restricting the free rotation of the lead screw 4, thereby ensuring that the position of the lead screw 4 does not shift; then, use another adjustment device 22 to adjust the parallelism in the horizontal direction of the other guide roller 21. The operation process is the same as the adjustment in the vertical direction.

[0050] The adjustment device 22 accurately controls the position adjustment of the guide roller 21 by independently adjusting its vertical and parallel directions, thereby improving the accuracy of parallelism adjustment. The adjustment device 22 drives the connecting component 15 to perform linear movement through the lead screw assembly 14, thereby driving the guide roller 21 to achieve precise adjustment. The anti-rotation fixing component 2 ensures that the lead screw assembly 14 can maintain the stability of the guide roller 21 position after adjustment. At the same time, the dial indicator handwheel 1 and scale display make the adjustment amount visible, allowing the operator to intuitively control the adjustment range.

[0051] This solution improves the stability and safety of the adjustment process, avoids errors in traditional manual adjustment, reduces downtime or quality problems caused by inaccurate positioning, and thus improves production efficiency and product quality stability.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjusting device, characterized in that: The device includes a fixed base (13), a lead screw assembly (14), and a connecting assembly (15). The lead screw assembly (14) is movably mounted on the fixed base (13) and connected to the connecting assembly (15). The lead screw assembly (14) is used to drive the connecting assembly (15) to move linearly. The connecting assembly (15) is used to connect the object to be adjusted. The device also includes an anti-rotation fixing member (2), which is used to lock the lead screw assembly (14) after adjustment is completed.

2. The adjusting device according to claim 1, characterized in that: It also includes a guide component (7), which is mounted on the fixed base (13) and connected to the connecting component (15). The guide component (7) is used to guide the connecting component (15) so that the connecting component (15) moves linearly.

3. The adjusting device according to claim 2, characterized in that: The guide assembly (7) includes a slider (16) and a guide rail (17) fixed on the fixed base (13). The slider (16) is engaged with the guide rail (17) and moves along the guide rail (17). The slider (16) is connected to the connecting assembly (15).

4. The adjusting device according to claim 3, characterized in that: The connecting assembly (15) includes a connector (10) and a bearing. The connector (10) is connected to the slider (16). The bearing is mounted on the connector (10) and is locked and fixed to the object to be adjusted by a nut and a stop washer.

5. The adjusting device according to claim 4, characterized in that: The lead screw assembly (14) includes a drive member, a lead screw (4) and a lead screw nut (5). The lead screw nut (5) is fixed on the connector (10). The lead screw (4) and the lead screw nut (5) are threaded together. The anti-rotation fixing member (2) is located between the drive member and the lead screw (4). One end of the lead screw (4) passes through the anti-rotation fixing member (2) and is connected to the drive member. The anti-rotation fixing member (2) is used to restrict the rotation of the lead screw (4).

6. The adjusting device according to claim 5, characterized in that: The driving component is a dial handwheel (1), which is equipped with a scale display for quantifying the adjustment amount.

7. The adjusting device according to claim 5, characterized in that: The fixed seat (13) includes a slider seat (6) and a support (9). The slider seat (6) and the support (9) are arranged perpendicularly. The guide rail (17) is fixed on the slider seat (6). The lead screw (4) is installed on the support (9) through the support fixing member (3).

8. The adjusting device according to claim 7, characterized in that: The anti-rotation fixing component (2) includes a fixing sleeve (18), an anti-rotation key, and a handle (19). The fixing sleeve (18) is sleeved on the lead screw (4) and presses against the support fixing component (3) with an interference fit. The anti-rotation key is located inside the fixing sleeve (18) and forms a circumferential limit with the lead screw (4). The handle (19) is linked to the anti-rotation key and is used to control the locking or unlocking state of the anti-rotation key.

9. A guide roller mechanism, comprising a guide roller assembly and an adjusting device as described in any one of claims 1-8, characterized in that: The guide roller assembly (20) includes two guide rollers (21), and the adjustment device (22) is set in two groups and is set in correspondence with the guide rollers (21). The adjustment device (22) is used to adjust the parallelism of the two guide rollers (21) in the vertical direction and the horizontal direction, respectively.

10. The guide roller mechanism according to claim 9, characterized in that: The axes of the two sets of lead screw assemblies (14) are perpendicular to each other.

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